Where are the camshaft position sensor and crankshaft sensors located?

2006 BUICK TERRAZA
137,000 MILES • 3.9L • 6 CYL • 2WD • AUTOMATIC
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DICK LITTLE
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  • 2 POSTS
Need to know where the camshaft position sensor and crankshaft sensors are located on engine.
Nov 17, 2024 at 3:20 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
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Hi,

The camshaft position sensor is located at the front of the engine, center, below the intake manifold. See pics 1 and 2 below.

The crankshaft position sensor is located at the rear of the engine close to the firewall. See pics 3 and 4.

Let me know if this helps or if you have questions.

Take care,

joe

See pics below.
Nov 17, 2024 at 9:14 PM
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DICK LITTLE
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When I change these sensors do I need to use a scan tool to delete them off BCM?
Nov 18, 2024 at 4:10 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

If you are referring to the diagnostic trouble codes, I would delete them to make sure they don't return. If you wait long enough, they could clear on their own, but it may take some time.

Joe
Nov 18, 2024 at 7:09 PM